EP 2990191 A1 20160302 - TIRE PLY AND METHOD OF ITS MANUFACTURE
Title (en)
TIRE PLY AND METHOD OF ITS MANUFACTURE
Title (de)
REIFENVERSTÄRKUNGSLAGE UND VERFAHREN ZU DEREN HERSTELLUNG
Title (fr)
NAPPE DE PNEU ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- US 201462042947 P 20140828
- US 201514751355 A 20150626
Abstract (en)
A method of forming a layer of tire ply (5, 16) and a pneumatic tire comprising such a ply as a carcass ply (5) are disclosed. The method comprising the steps: providing a first strip of ply (20) having a plurality of evenly spaced reinforcement cords (22) with a spacing s and having a lateral end (21), wherein two cords (22a, 22b) at the lateral end (21) are not evenly spaced or spaced at a distance different from said spacing s, and said two cords (22a, 22b) are spaced apart a distance x, wherein x is not equal to s; providing a second strip of ply (24) having a plurality of evenly spaced reinforcement cords (25) having a spacing c and having a lateral end (23), wherein two cords (25a, 25b) at the lateral end (23) are not evenly spaced or spaced at a distance different from said spacing c, and said two cords (25a, 25b) are spaced apart a distance y, wherein y is not equal to c; and joining the first and second lateral ends (21, 25) so that so that (i) the spacing x partially or at least partially overlaps with the spacing y, or so that (ii) the spacing x completely overlaps with the spacing y so that they are in a parallel relationship.
IPC 8 full level
B29D 30/42 (2006.01)
CPC (source: BR EP US)
B29D 30/08 (2013.01 - BR EP US); B29D 30/42 (2013.01 - BR EP US); B60C 9/04 (2013.01 - US); B29D 2030/423 (2013.01 - BR EP US); B29D 2030/428 (2013.01 - BR EP US); B60C 2009/0425 (2013.01 - US)
Citation (search report)
- [XI] US 5200009 A 19930406 - TOKITA NOBORU [US]
- [XI] DE 1579213 A1 19700430 - CONTINENTAL GUMMI WERKE AG
- [XI] EP 1072395 A1 20010131 - CONTINENTAL AG [DE]
- [X] JP S5591649 A 19800711 - YOKOHAMA RUBBER CO LTD
- [XI] US 2003051794 A1 20030320 - SUDA NOBUYUKI [JP], et al
- [XI] US 4261393 A 19810414 - SAITO SHIGERU, et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2990191 A1 20160302; EP 2990191 B1 20181226; BR 102015020644 A2 20160920; CN 105904917 A 20160831; US 2016059630 A1 20160303
DOCDB simple family (application)
EP 15181506 A 20150819; BR 102015020644 A 20150826; CN 201510538090 A 20150828; US 201514751355 A 20150626